book Maths Puzzle Numerical Ability

how am i to proof a statement like ab=0

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book Other Question

Solve the following problem and include the steps you use to solve the problem.

Rose's garden is a square with sides of length x feet. Next spring she plans to make it rectangul A new catalog from an office supply company shows that some of its prices will increase next month. This month, copier paper costs $2.70 per ream and printer cartridges cost $15.50